APA

Vaught R. S., Association for Computing Machinery & ACM Special Interest Group on University and College Computing Services. (1991). Proceedings of the 19th annual ACM SIGUCCS conference on User services. New York, NY: ACM.

Chicago

Vaught Russell S, Association for Computing Machinery and ACM Special Interest Group on University and College Computing Services. 1991. Proceedings of the 19th annual ACM SIGUCCS conference on User services. New York, NY: ACM.

Harvard

Vaught R. S., Association for Computing Machinery and ACM Special Interest Group on University and College Computing Services. (1991). Proceedings of the 19th annual ACM SIGUCCS conference on User services. New York, NY: ACM.

MLA

Vaught Russell S, Association for Computing Machinery and ACM Special Interest Group on University and College Computing Services. Proceedings of the 19th annual ACM SIGUCCS conference on User services. New York, NY: ACM. 1991.